<template>
  <view>
    <view v-for="(item, i) in goodsList" :key="i" @click="gotoDetail(item)">
      <!-- 为 my-goods 组件动态绑定 goods 属性的值 -->
      <my-goods :goods="item"></my-goods>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数对象
        queryObj: {
          // 查询关键词
          query: '',
          // 商品分类Id
          cid: '',
          // 页码值
          pagenum: 1,
          // 每页显示多少条数据
          pagesize: 10
        },
        goodsList: [],
        total: 0,
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png',
        isloading: false
      }
    },

    onLoad(option) {
      this.queryObj.cid = option.cid || ''
      this.queryObj.query = option.query || ''
      this.getGoodsList()
    },

    // 触底的事件
    onReachBottom() {
      if (this.total <= this.goodsList.length) return uni.$showMsg('数据加载完毕。。。')
      if (this.isloading) return
      // 让页码值自增 +1
      this.queryObj.pagenum += 1
      // 重新获取列表数据
      this.getGoodsList()
    },

    onPullDownRefresh() {
      // 1. 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []

      // 2. 重新发起请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    },

    methods: {
      async getGoodsList(cb) {
        this.isloading = true
        // 发起请求
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        if (res.meta.status !== 200) return uni.$showMsg()
        // 为数据赋值
        cb && cb()
        this.goodsList = [...this.goodsList, ...res.message.goods]
        this.total = res.message.total
        this.isloading = false
      },
      
      // 点击跳转到商品详情页面
      gotoDetail(item) {
        uni.navigateTo({
          url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
        })
      },
    },
  }
</script>

<style lang="scss">
  .goods-list {


    .goods-item {
      border-bottom: #efefef;
      padding: 10px 5px;
      display: flex;

      .goods-left-box {
        margin-right: 5px;

        .goods-pic {
          width: 100px;
          height: 100px;
          display: block;
        }
      }

      .goods-right-box {
        display: flex;
        flex-direction: column;
        justify-content: space-between;

        .goods-name {
          font-size: 13px;
        }

        .goods-info {
          font-size: 16px;
          color: #c00000;
        }
      }
    }
  }
</style>
